web2.ebusiness.be has no MX records.
Question and response
Question
dig web2.ebusiness.be. MX
Answer
web2.ebusiness.be. 5 CNAME web2.ebusiness.be.
Authority
The response has no authority records.
Additional
. 0 OPT [{Extended_DNS_Error: OTHER: max. restarts reached}] ; payload 1232, xrcode 0, version 0, flags 0